diff --git a/src/lib/netlist/build/makefile b/src/lib/netlist/build/makefile
index d33255759b4..f65e78dfd40 100644
--- a/src/lib/netlist/build/makefile
+++ b/src/lib/netlist/build/makefile
@@ -168,7 +168,7 @@ maketree: $(sort $(OBJDIRS))
 .PHONY: clang mingw doc
 
 clang:
-	$(MAKE) CC=clang++ LD=clang++ CEXTRAFLAGS="-Weverything -Werror -Wno-padded -Wno-weak-vtables -Wno-missing-variable-declarations -Wconversion -Wno-c++98-compat -Wno-float-equal -Wno-global-constructors -Wno-c++98-compat-pedantic -Wno-format-nonliteral -Wno-weak-template-vtables -Wno-exit-time-destructors"
+	$(MAKE) CC=clang++ LD=clang++ CEXTRAFLAGS="-march=native -Weverything -Werror -Wno-padded -Wno-weak-vtables -Wno-missing-variable-declarations -Wconversion -Wno-c++98-compat -Wno-float-equal -Wno-global-constructors -Wno-c++98-compat-pedantic -Wno-format-nonliteral -Wno-weak-template-vtables -Wno-exit-time-destructors"
 
 # 
 # Mostly done: -Wno-weak-vtables -Wno-cast-align
diff --git a/src/lib/netlist/devices/nld_am2847.cpp b/src/lib/netlist/devices/nld_am2847.cpp
index f0517f20cf2..b4891db5398 100644
--- a/src/lib/netlist/devices/nld_am2847.cpp
+++ b/src/lib/netlist/devices/nld_am2847.cpp
@@ -110,11 +110,11 @@ namespace netlist
 
 	inline NETLIB_FUNC_VOID(Am2847_shifter, shift, (void))
 	{
-		unsigned out = m_buffer[0] & 1;
+		uint32_t out = m_buffer[0] & 1;
 		uint32_t in = (m_RC() ? out : m_IN());
 		for (std::size_t i=0; i < 5; i++)
 		{
-			uint16_t shift_in = (i == 4) ? in : m_buffer[i + 1];
+			uint32_t shift_in = (i == 4) ? in : m_buffer[i + 1];
 			m_buffer[i] >>= 1;
 			m_buffer[i] |= shift_in << 15;
 		}
diff --git a/src/lib/netlist/nl_base.cpp b/src/lib/netlist/nl_base.cpp
index 7556c1828da..01af5ecfd59 100644
--- a/src/lib/netlist/nl_base.cpp
+++ b/src/lib/netlist/nl_base.cpp
@@ -689,7 +689,7 @@ void detail::net_t::rebuild_list()
 {
 	/* rebuild m_list */
 
-	unsigned cnt = 0;
+	int cnt = 0;
 	m_list_active.clear();
 	for (auto & term : m_core_terms)
 		if (term->state() != logic_t::STATE_INP_PASSIVE)
diff --git a/src/lib/netlist/nl_base.h b/src/lib/netlist/nl_base.h
index ee926fd2039..03bf044f049 100644
--- a/src/lib/netlist/nl_base.h
+++ b/src/lib/netlist/nl_base.h
@@ -235,7 +235,7 @@ namespace netlist
 	{
 	public:
 		logic_family_desc_t();
-		~logic_family_desc_t();
+		virtual ~logic_family_desc_t();
 
 		virtual plib::owned_ptr<devices::nld_base_d_to_a_proxy> create_d_a_proxy(netlist_t &anetlist, const pstring &name,
 				logic_output_t *proxied) const = 0;